Encapsulation (computer programming): Difference between revisions

Revision as of 05:26, 18 January 2013

Revision as of 15:14, 18 January 2013

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This mechanism is not unique to object-oriented programming. Implementations of [[abstract data types]], e.g. [[module (programming)|modules]], offer a similar form of encapsulation. This similarity stems from the fact that both notions rely on the same mathematical fundament of an [[existential type]].<ref>Pierce (2002), Section 24.2 "Data Abstraction with Existentials"</ref>

// This Main method can check the balance via the public

// "CheckBalance" method provided by the "Account" class

// but it cannot manipulate the value of "accountBalance"

// but this is very good

== In combination ==

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An analogy can be made here with the notion of a [[Information hiding|capsule]], which not only encloses its contents, but also protects it from the exterior environment.<ref name=Dale/>

// This Main method can check the balance via the public

// "CheckBalance" method provided by the "Account" class

// but it cannot manipulate the value of "accountBalance"

// but this is very good

== References ==